2018kag | Transient Name Server

RA/DEC (2000)

08:55:48.476 +03:38:29.51

133.9519813 +3.6415297

Type

SN IIn

Redshift

0.02736

Discovery Report Classification Report

Reporting Group

ASAS-SN

Discovering Data Source

ASAS-SN

Discovery Date

2018-12-17 01:40:48.000

TNS AT

Y

Public

Y

Host Name

SDSS J085548.84+033827.9

Host Redshift

0.027209

Discovery Mag

17.2

Filter

g-Sloan

Reporter/s

J. Brimacombe, K. Z. Stanek, for the ASAS-SN team

NED SIMBAD DECaLS PanSTARRS-1 SkyMapper VizieR WISE DSS ADS

Light curves

Pointer position (MJD, Mag, Abs.Mag): (0.00, 0.00, 0.00)

Spectra

Select	ID	Obs-date (UT)	Tel / Inst	Exp-Time	Observer/s	Reducer/s	Group	Spectrum ascii file	Spectrum fits file	Spec. Type	Assoc. Groups	End prop. period	Remarks
	3314	2018-12-24 06:56:25	P60 / SEDM	1200	SEDmRobot	auto	ZTF	tns_2018kag_2018-12-24_06-56-25_P60_SEDM_ZTF.ascii		Object
Binning factor: (rounded to nearest integer >1) Mouse hovers at WL: 0 (rest), 0 (observed) ▌Show H at z=v_exp= km/s ▌Show He at z=v_exp= km/s ▌Show He II at z=v_exp= km/s ▌Show C II at z=v_exp= km/s ▌Show C III at z=v_exp= km/s ▌Show C IV at z=v_exp= km/s ▌Show N II at z=v_exp= km/s ▌Show N III at z=v_exp= km/s ▌Show N IV at z=v_exp= km/s ▌Show N V at z=v_exp= km/s ▌Show O at z=v_exp= km/s ▌Show [O I] at z=v_exp= km/s ▌Show O II at z=v_exp= km/s ▌Show [O II] at z=v_exp= km/s ▌Show [O III] at z=v_exp= km/s ▌Show O V at z=v_exp= km/s ▌Show O VI at z=v_exp= km/s ▌Show Na at z=v_exp= km/s ▌Show Mg at z=v_exp= km/s ▌Show Mg II at z=v_exp= km/s ▌Show Si II at z=v_exp= km/s ▌Show S II at z=v_exp= km/s ▌Show Ca II at z=v_exp= km/s ▌Show [Ca II] at z=v_exp= km/s ▌Show Fe II at z=v_exp= km/s ▌Show Fe III at z=v_exp= km/s ▌Show Å at z=v_exp= km/s ▌Show Å at z=v_exp= km/s ▌Show Å at z=v_exp= km/s ▌Show Å at z=v_exp= km/s ▌Show Tellurics ▌Show Galaxy lines at z= ▌Show WR-WN at z=v_exp= km/s ▌Show WR-WC/O at z=v_exp= km/s Remarks
	3297	2018-12-18 01:09:32	LT / SPRAT	800	S. J. Prentice, K. Maguire, M. R. Magee, P. Clark, K. Skillen		None	tns_2018kag_2018-12-18_01-09-32_LT_SPRAT.txt		Object
Binning factor: (rounded to nearest integer >1) Mouse hovers at WL: 0 (rest), 0 (observed) ▌Show H at z=v_exp= km/s ▌Show He at z=v_exp= km/s ▌Show He II at z=v_exp= km/s ▌Show C II at z=v_exp= km/s ▌Show C III at z=v_exp= km/s ▌Show C IV at z=v_exp= km/s ▌Show N II at z=v_exp= km/s ▌Show N III at z=v_exp= km/s ▌Show N IV at z=v_exp= km/s ▌Show N V at z=v_exp= km/s ▌Show O at z=v_exp= km/s ▌Show [O I] at z=v_exp= km/s ▌Show O II at z=v_exp= km/s ▌Show [O II] at z=v_exp= km/s ▌Show [O III] at z=v_exp= km/s ▌Show O V at z=v_exp= km/s ▌Show O VI at z=v_exp= km/s ▌Show Na at z=v_exp= km/s ▌Show Mg at z=v_exp= km/s ▌Show Mg II at z=v_exp= km/s ▌Show Si II at z=v_exp= km/s ▌Show S II at z=v_exp= km/s ▌Show Ca II at z=v_exp= km/s ▌Show [Ca II] at z=v_exp= km/s ▌Show Fe II at z=v_exp= km/s ▌Show Fe III at z=v_exp= km/s ▌Show Å at z=v_exp= km/s ▌Show Å at z=v_exp= km/s ▌Show Å at z=v_exp= km/s ▌Show Å at z=v_exp= km/s ▌Show Tellurics ▌Show Galaxy lines at z= ▌Show WR-WN at z=v_exp= km/s ▌Show WR-WC/O at z=v_exp= km/s Remarks

Light Curves

Filter

Tel / Inst

Obs-date range

JD Range

Photometry

r-ZTF

P48_ZTF-Cam

2018-12-20 10:36:28 - 2018-12-20 10:36:28

2458472.9419907 - 2458472.9419907

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
47472	2018-12-20 10:36:28	2458472.9419907	17.24			ABMag	r-ZTF	P48_ZTF-Cam	30	ZTF

g-ZTF

P48_ZTF-Cam

2018-12-15 10:56:38 - 2018-12-20 11:55:40

2458467.9559954 - 2458472.9969907

2

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
47473	2018-12-20 11:55:40	2458472.9969907	17.1			ABMag	g-ZTF	P48_ZTF-Cam	30	ZTF
47471	2018-12-15 10:56:38	2458467.9559954			17.84	ABMag	g-ZTF	P48_ZTF-Cam	30	ZTF	[Last non detection]

g-Sloan

ASASSN-5_Payne-Gaposchkin

2018-12-17 01:40:48 - 2018-12-17 01:40:48

2458469.57 - 2458469.57

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
46308	2018-12-17 01:40:48	2458469.57	17.2			ABMag	g-Sloan	ASASSN-5_Payne-Gaposchkin

orange-ATLAS

ATLAS-MLO_ATLAS-01

2018-12-12 13:36:28 - 2018-12-16 12:18:43

2458465.0669907 - 2458469.0129977

2

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
46352	2018-12-16 12:18:43	2458469.0129977	18.158	0.179	18.8	ABMag	orange-ATLAS	ATLAS-MLO_ATLAS-01	30	Robot
46351	2018-12-12 13:36:28	2458465.0669907			19.32	ABMag	orange-ATLAS	ATLAS-MLO_ATLAS-01	30	Robot	[Last non detection]

g-Sloan

ASASSN-2_Cassius

2018-12-16 05:02:24 - 2018-12-16 05:02:24

2458468.71 - 2458468.71

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
46307	2018-12-16 05:02:24	2458468.71			18	ABMag	g-Sloan	ASASSN-2_Cassius			[Last non detection]

AT Reports

ID	Time received (UT)	Sender	Reporter/s	Reporting group	Disc. Data Source	RA	DEC	Discovery date (UT)	Discovery Mag.	Filter	Related files	AT Type	Host name	Internal name	Assoc. Groups	End prop. period	Remarks	ADS Bibcode	Unreal	Auto classification
26873	2018-12-20 22:46:10	ZTF_Bot1	C. Fremling (Caltech) on behalf of the Zwicky Transient Facility (ZTF) collaboration	ZTF	ZTF	08:55:48.476	+03:38:29.51	2018-12-20 10:36:28.000	17.24	r-ZTF		PSN		ZTF18acwzyor	ZTF				N
26535	2018-12-17 18:43:26	ATLAS_Bot1	J. Tonry, L. Denneau, A. Heinze et al.	ATLAS	ATLAS	08:55:48.453	+03:38:29.90	2018-12-16 12:18:43.000	18.158	orange-ATLAS		PSN		ATLAS18bbuv	ATLAS				N
26513	2018-12-17 14:13:21	Krzysztof Stanek	J. Brimacombe, K. Z. Stanek, for the ASAS-SN team	ASAS-SN	ASAS-SN	08:55:48.398	+03:38:28.10	2018-12-17 01:40:48.000	17.2	g-Sloan		PSN	SDSS J085548.84+033827.9	ASASSN-18abt	ASAS-SN		Confirmed via follow-up imaging	2018TNSTR1938....1B	N

Classification Reports

ID

Time received (UT)

Sender

Classifier/s

Group

Classification

Redshift

Spectra

Related files

Assoc. Groups

End prop. period

Remarks

ADS Bibcode

3306

2018-12-26 10:53:36

ZTF_Bot1

C. Fremling, A. Dugas, Y. Sharma (Caltech) on behalf of the Zwicky Transient Facility (ZTF)

ZTF

SN IIn

0.02736

1

ZTF

2018TNSCR2187....1F

Spectra

ID	Obs-date (UT)	Tel / Inst	Exp-Time	Observer/s	Reducer/s	Group	Spectrum ascii file	Spectrum fits file	Spec. Type	Assoc. Groups	End prop. period	Remarks
3314	2018-12-24 06:56:25	P60 / SEDM	1200	SEDmRobot	auto	ZTF	tns_2018kag_2018-12-24_06-56-25_P60_SEDM_ZTF.ascii		Object

3289

2018-12-19 16:11:04

Simon Prentice

S. J. Prentice, K. Maguire, M. R. Magee, P. Clark, K. Skillen (QUB)

None

SN II

0.027209

1

Young SN II, possible IIn.

2018TNSCR1952....1P

Spectra

ID	Obs-date (UT)	Tel / Inst	Exp-Time	Observer/s	Reducer/s	Group	Spectrum ascii file	Spectrum fits file	Spec. Type	Assoc. Groups	End prop. period	Remarks
3297	2018-12-18 01:09:32	LT / SPRAT	800	S. J. Prentice, K. Maguire, M. R. Magee, P. Clark, K. Skillen		None	tns_2018kag_2018-12-18_01-09-32_LT_SPRAT.txt		Object

Comments

Object coordinates updated

Object coordinates updated according to AT-report 26873 of Group ZTF
Previous RA, DEC: 08:55:48.398, +03:38:28.10 (133.95166, +3.64114)
Updated RA, DEC: 08:55:48.476, +03:38:29.51 (133.9519813, 3.6415297)

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Finding Chart

http://www.astronomy.ohio-state.edu/assassin/followup/asassn-18abt.png

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